Lignocellulosic Nanofibrils as Multifunctional Component for High-Performance Packaging Applications

32 Pages Posted: 12 Mar 2022

See all articles by Xiao Zhang

Xiao Zhang

affiliation not provided to SSRN

Nicolas Roland Tanguy

affiliation not provided to SSRN

Heyu Chen

Northwest Agricultural and Forestry University

Yisu Zhao

affiliation not provided to SSRN

Pitchaimari Gnanasekar

University of Toronto

Ronan Le Lagadec

affiliation not provided to SSRN

Ning Yan

University of Toronto

Abstract

Polyvinyl alcohol (PVA), a biodegradable polymer, has emerged as a promising alternative to non-biodegradable petrochemical counterparts to reduce the environmental impact of the food and medical industries. In this study, we demonstrate an environmentally friendly and low-cost strategy to broaden the application scope of PVA as a packaging material by enhancing the polymer mechanical performance and reducing its hydrophilicity. By taking advantage of hydrophobic lignin that is covalently bound to the mechanically strong cellulose nanofibrils, we demonstrated that integrating oxidized lignocellulosic nanofibrils (t-LCNF) in PVA enhanced the mechanical properties, water barrier performance, and thermal stability. With only 2 wt% t-LCNF, remarkable improvements in tensile strength (21%) and toughness (74%) were obtained compared to pristine PVA films. In addition, the integration of t-LCNF improved PVA thermal stability (+67 °C at 20 wt% t-LCNF), water barrier property (-0.67 g/(m2*day)*m in water vapor transmission rate at 10 wt% t-LCNF), hydrophobicity (contact angle of 97.3 ° at 20 wt% t-LCNF), and provided tunable UV-shielding properties. This study demonstrated the excellent promise of t-LCNF as a low-cost and multifunctional component that enhances the properties of PVA for packaging applications.

Keywords: lignin-containing cellulose nanofibrils, polyvinyl alcohol, multifunctional packaging, UV-shielding, water barrier.

Suggested Citation

Zhang, Xiao and Tanguy, Nicolas Roland and Chen, Heyu and Zhao, Yisu and Gnanasekar, Pitchaimari and Le Lagadec, Ronan and Yan, Ning, Lignocellulosic Nanofibrils as Multifunctional Component for High-Performance Packaging Applications. Available at SSRN: https://ssrn.com/abstract=4055764 or http://dx.doi.org/10.2139/ssrn.4055764

Xiao Zhang (Contact Author)

affiliation not provided to SSRN ( email )

No Address Available

Nicolas Roland Tanguy

affiliation not provided to SSRN ( email )

No Address Available

Heyu Chen

Northwest Agricultural and Forestry University ( email )

Yangling, 712100
China

Yisu Zhao

affiliation not provided to SSRN ( email )

No Address Available

Pitchaimari Gnanasekar

University of Toronto ( email )

105 St George Street
Toronto, M5S 3G8
Canada

Ronan Le Lagadec

affiliation not provided to SSRN ( email )

No Address Available

Ning Yan

University of Toronto ( email )

105 St George Street
Toronto, M5S 3G8
Canada

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